Razor-blade holder



P. G. JACOBSON.y

RAZOR BLADE HOLDER.

APPucATlou min Aue.2|. |911. ninzweu MAR. 6.1919.

Patented Oct. 7, 1919.

1HE COLUMBIA PLANOGRAPH cu..

talliy in plan PETER Gr. JACOIB'SON, OF'CHICAG'O, ILLINOIS.

RAZOR-BLADE HOLDER.

Specification of Letters Patent.

Application filed August v21, 1917, Serial No. 187,343.y Renewed March 6, 1919. Serial No. 281,073.

To all 'whom t may concern:

Be it known that I, PETER G. J AooBsoN, a citizen of the United States, residing at Chicago, in the county of'Cook and State of Illinois, have invented a certain new andf useful Improvement in Razor-Blade- Holders, of which the following is a.fullclear, concise, and exact description.

My invention relates to razor blade holders and has for one generalobject the pro-- vision of mechanism wherebythe mounting for the handle of the holder, in being moved rearwardly and forwardly, may bring the bladeholding jaws into clamping engagement with the blade to be held or may'relieve'- such blade of this clamping action.

The jaws are desirably hinged together at' their rear endsand the means whereby the.

handle mounting may be eEective in exerting clamping action is desirably inclusive ofv means for coupling the jaws and mounting in sliding relation, the clamping action bein forwardly and released when the mounting is moved rearwardly.

One of the jaws may be swung apart fromy the other jaw when the clamping action is released, at which time means is preferably effective to prevent forward movement of.

the handle'mounting.

My invention also has forits. object the provision of an adapter for application to the holder, this adapter having structural characteristics whereby it may readily be applied` to the holder and other characteristics whereby it is suitable to hold the bladel of a particular design for which the adapter is made. Thus, if the holder is not adapted readily to hold a given blade idirectly, such adapter enables .the holder readily to hold.

view on line 4-4 of Fig. 6; Fig. 5 is a view 4; Fig. 6 is a View paron line 5&5 `of Fic I d partially in section on effected when the mounting is moved Like parts are indicated by similarl charactersof reference throughout the different.

ligure-s.

The razor blade vholder includes a pair of blade holding jaws 1 and 2. These jaws are in hinged connection at their rear ends wherebythe jaw l may be swung from and toward the aw 2. The means by which the jaws l and 2 are hinged together desirably resides in a shaft 3 which is in fixed relation with the jaw 1 and in rotatable relation with the j aw 2.. The handle mounting is in the form of a hollow block 4 that carries 'a shaft 5 at its forward end. The handle 6 desirably has its forward end terminating in bifurcations 7 which are coupled with the handle mounting 4 through the agency of the shaft 5, the handle bifurcations -7 and the' handle mounting 4 being swingingly connected by means of the shaft 5. They handle mounting 4 is coupled with the jaws 1 and 2 in the manner to permit the handle mounting to move rearwardly and forwardlyv toward and away from the rear hinged ends of the jaws. To this end the handle 'mounting4 is desirably provided with lugs 8 upon that which happens tol be the top sidethereof, and the lugs 9 upon that which happens to be the bottom side thereof. The lugs 8 pass through the slots, 10 provided in and extending longitudinally of the jaw 1. The lugs 9 pass through slots 11 provided in and extending longitudinally of the jaw 2. The lugs 8 and the lugs 9 are bent over at their outer end portions to voverlie and underliey the jaws 1 and 2 respectively. Vhen the jaws are in clamping engagement. with the razor blade 12 the handle mounting 4 is in its forward position with the lugs 8 and 9 in the forward ends of the slots in the jaws. The overturned outer ends of the lugsV 8 and 9, when the mounting '4.is in its forwardY position, act as clamping means to force the aws into .tight engagement with the blade. The slots 10 in the jaw 1 are desirably provided 'with angular continuatons 191' adapted taregister with the raten-tea oet.l 7, i919..

iiio

overturned ends ofthe lugs 8 and the handle mounting 4 is moved to the rear, it being possible to move this handle mounting to the rear by pulling backwardly upon the handle 6. When the handle mountingA 1s pulled sufficiently to the rear to bring the overturnedv `endsoof the lugs 8 into register with the slot continuations 10, the jaw 1 may be swung awayv from the jaw 2 (Fig. 7 to lpermit of the ready insertion of a new blade and while Jche lugs 8 are vat the slot enlargements 101 the jaw 1 may be closed toward the jaw 2. T o prevent the lugs 8 from getting out of alinement with the slot continuations 101 while the jawV 1 isopened,

that is to prevent the forward movementv of the handle mountin'g4 whilethe jaw 1 is opened, said handle mountingis so caught.

by the shaft. 3)l (rigidly coupled with the jaw 1)V that the handle mounting cannot move forwardly Vwhile the jaw 1 is opened,

To this end I desirably provide the rear ends of the arms 41 that extend rearwardly from and form continuations of the handle mounting 4 with openings 13 adapted to receivethe shaft 3. vThese openings are provided with narrow inlets 14 through which the flat-' tened portions 15 of the shaft 3 may pass when the jaw 1 is closed, at which time 'the' handle mounting 4 may be moved rear-- 1 is swung apart from thejaw-.2 vthe lflatportions 15 .of the shaft 3 lie across the in` lets 14 vso that the handle mounting 4 cannot be moved forwardly at this time. When a new blade has been inserted between the jaws the jaw 1 is pressed VJtoward thejaw 2 and thehandlemounting 4 is moved forwardly in the position indicated Vin Figs. 1 to. 6 inclusivewhereby-the jaws are maintained in clampedjengagement with the blade. y c

The razor blade holder illustrated is partlcularly adapted to hold safetyrazor blades when they are to be honed, on .whichV account the handle mounting 4 has 'swinging' connection with the vhandlefpart 7,7 through the intermediation of the shaft 5to allowi jaws `that are clamped about the blade 'tov be oscillated as the holder is reversed .to

bring first one side and then the other of the blade into. contact with Vthe hone.y vThis oscillation` is desir-ably limited by interen- Vgaging formations 16,17 u on the handle which the pin moves and which are engaged bythe pin. .The rear end of the handle mounting 4 is desirably weighted, suflicientweight being furnished by a roller 1S mounted to turn upon the shaft 3, the roller .and the forward edge of the safety razor In Fig. 8 1 have illustrated in perspective anV adapter 19 which is also shown in other views. This adapter is for the purpose of guiding and enabling the ready application of av bladebetween the jaws vof a holder, the adapter being constructed with 'especial reference -to theparticular kind of blade to be; held 4and having structural characteristics wherebyit is readily adapted forjinterposition` between the jaws of theholder. adapterrhas lugs '20'and` 21 upon each'side This Y thereof. The lugs V20 (Fig. o)Y are interposed f between the lugs 22 that are carried by the jaw 2 :whereby theadapter cannot move sidewise. -The forward portion of the -adapter engages the lugs 22 to prevent the adapter from moving rearwardly. Y The lugs 21 upon the adapter engage the rear Yedges ofV the 'lugs 22 'to prevent'the adapter from` being moved outwardly. This adapter carries a spring clip 23 beneath which ablade that is to be sharpened may be slipped. The forward portion of the adapter carries two pilot lugs 24 for reception in thel holes of 'the safetyv razor blade that is to be sharpened. As the position of the bladewith respect to the chapter is determinedby the i pilot lugs 24 and as the yadapter is held'with respect to the jaw 2 in the manner described, the blade is consequently held in iixedrela 'Y ico tion'with-,the jaws when the jaw 1 is clamped;Y

closed. Y Y f Y While 1 have herein shown and particularly described the preferred embodiment of my invention T'do not wish to be limited to the precise detailsof construction Vshown as changes. mayreadily be madcwithout Vdeparting from the spirit of my invention, but

having thus described my invention I claim as newYA and Vdesire to 'secure by Letters Patent' the following: Y

1. A razor blade holder including a pair of razor blade holding jaws; a handle; 'a handle mounting with which the handle has swinging` connectionv and movable rearwardly and/forwardly;V and jaw clamping meansy operated vby the mounting, whenV moved in onedirection, to clamp the jaws upon a blade interposed therebetween, and

operated by the mounting, when moved in the reverse direction, to relieve the jan-'s of clamping action. l

2. A razor blade holder lincluding a pair of razor blade holding jaws; Va handle; a. handle mounting with which the handle has swinging connection and movable rearwardly and forwardlygand means for'coupling said jaws and said `n iQunting in sliding relation and serving, when the mounting is moved in one directon, tofclamp the jaws upon a blade interposed therebetween, and operated by the mounting,when moved in the reverse direction, to. relievethe jaws of clamping action.

3. A razor blade holder including a pair of razor blade holding jaws hinged together at their rear ends; a handle `;a handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; and jaw clamping means operated by the mounting, when moved in one direction, to clamp the jaws upon a blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the jaws of clamping action.

4. A razor blade holder including a pair of razor blade holding jaws hinged together at their rear ends; a handle; a handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; and means for coupling said jaws and said mounting in sliding relation and serving, when the mounting is moved in one direction, to clamp the jaws upon a blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the jaws of clamping action.

5. A razor blade holder including a pair of razor blade holding jaws hinged together at their rear ends; a handle; a handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; and jaw clamping means operated by the mounting, when moved in one direction, to clamp the jaws upon a blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the jaws of clamping action, said clamping means and one of said jaws being in separable relation, when the jaws are relieved of clamping action, to permit this jaw to be sufficiently widely separated from the other jaw for the ready insertion of a razor blade between the jaws.

6. A razor blade holder including a. pair of razor blade holding jaws hinged together at their rear ends; a handle; a handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; and means for coupling said jaws and said mounting in sliding relation, to clamp the jaws upon a blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the jaws of clamping action, said coupling, means and one of said jaws being in separable relation when the jaws are relieved of clamping action, to permitthis jaw to be suliciently widelyseparated from the other jaw for the ready insertca uf a razor blade between the jaws1 7. A razor blade holderincluding a pair of razor blade holding jaws hingedtogether at their rear ends; a handle; a handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; jaw clamping means opera-ted by the mounting, when moved in one direction, to clamp the jaws upon a blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the jaws of clamping action, said clamping means and one of said jaws being in separable relation, when the jaws are relieved of clamping action, to permit this jaw to be sufficiently widely separated from the other jaw for the ready insertion of a razor blade between the jaws; and means governed by the jaw that is adapted for separating movement from its companion for preventing clamping movement of the handle mounting when this jaw is widely separated from the other.

8. A razor blade holder including a pairv of razor blade holding jaws hinged togetherv at their rear ends; a handle; a handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; means for coupling ksaid jaws and said mounting in sliding relation, to clamp the jaws upon a blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the jaws of clamping action, said coupling means and one of said jaws being in separable relation, when the jaws are relieved of clamping action, to permit this jaw to be sufiiciently widely separated from the other jaw for the ready insertion of a razor blade between the jaws; and means governed by the jaw that is adapted for separating movement from its companion for preventing clamping movement of the handle mounting when this jaw is widely separable from the other.

9. A razor blade holder including a pair of razor blade holding jaws hinged together at their rear ends; a handle; a. handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; jaw clamping means operated by the mounting', when moved in Vone d-irection, to clamp the jaws upon a blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the aws of clamping action; and int-erengaging formations connected with the handle and handle mounting to limit the relative movement of the handle and its mounting.

10. A razor blade holder including a pair of razor blade holding jaws hinged together at their rear ends; a handle; a handle mounting with which the handle has swinging connection and movable rearwardly and forwardly; for coupling said jaws and said mounting in sliding relation and serving, When the mounting is moved in one direction, to clamp the jaws upona blade interposed therebetween, and operated by the mounting, when moved in the reverse direction, to relieve the jaws of clamping action; and interengaging formations con'- neeted Wththe handle and handle mounting to limit-the relative movement of the handle and its mounting. 10

In Witness whereof, I hereunto subscribe my name this 31st day ofJuly, A. D. '1917.

PETER' e. JAooBSoN.

Y Copies of this patent may be obtained for ve cents each,V by addressingtheV Commissioner of Patents,

, f Washington,D.C. Y 

